var app = getApp();
var WxParse = require('../../wxParse/wxParse.js');
Page({
  data: {
    // imgUrls: [
    //   'https://m.360buyimg.com/n12/jfs/t7522/194/311475600/182592/9aa8aca9/599174ddN5bc11927.jpg!q70.jpg',
    //   'https://m.360buyimg.com/n12/jfs/t5578/130/858813768/137724/a013db2e/592270f0N5dbae24a.jpg!q70.jpg',
    //   'https://m.360buyimg.com/n12/jfs/t7522/194/311475600/182592/9aa8aca9/599174ddN5bc11927.jpg!q70.jpg'
    // ],
    indicatorDots: true,
    autoplay: true,
    interval: 2000,
    duration: 1000,
    radioCheckVal: 0,
    introduce:"",
    appraise:"false",
    buynum: 1,
  },
   tapName: function () {
    wx.switchTab({//跳转到购物车
      url: '../shop/shop'
    })
  },
  changeIndicatorDots: function (e) {
    this.setData({
      indicatorDots: !this.data.indicatorDots
    })
  },
  radioCheckedChange: function (e) {
    console.log(e.target.id)
    this.setData({
      radioCheckVal: e.target.id

    })
  },
  appraise:function() {
    console.log(this)
    //详情
    this.setData({
      appraise:"",
      introduce:"false"
    })
  },
  introduce:function() {
    //评价
    this.setData({
      appraise: "false",
      introduce: ""
    })
  },
  
  changeAutoplay: function (e) {
    this.setData({
      autoplay: !this.data.autoplay
    })
  },
  intervalChange: function (e) {
    this.setData({
      interval: e.detail.value
    })
  },
  durationChange: function (e) {
    this.setData({
      duration: e.detail.value
    })
  },
  onLoad: function (option) {
    var that = this;
    that.setData({
      productId: option.productId,
    });
    console.log(option.productId)
  },
  // 加减
  changeNum: function (e) {
    var that = this;
    if (e.target.dataset.alphaBeta == 0) {
      if (this.data.buynum <= 1) {
        buynum: 1
      } else {
        this.setData({
          buynum: this.data.buynum - 1
        })
      };
    } else {
      this.setData({
        buynum: this.data.buynum + 1
      })
    };
  },
  addShopCart: function (e) { //添加到购物车
    var that = this;
    wx.request({
      url: app.d.ceshiUrl + '/Api/Shopping/add',
      method: 'post',
      data: {
        uid: app.d.userId,
        pid: that.data.productId,
        num: that.data.buynum,
      },
      header: {
        'Content-Type': 'application/x-www-form-urlencoded'
      },
      success: function (res) {
        // //--init data        
        var data = res.data;
        if (data.status == 1) {
          var ptype = e.currentTarget.dataset.type;
          if (ptype == 'buynow') {
            wx.switchTab({
              url: '../shop/shop?cartId=' + data.cart_id
            });
            return false;
          } else {
            wx.showToast({
              title: '加入购物车成功',
              icon: 'success',
              duration: 2000
            });
          }
        } else {
          wx.showToast({
            title: data.err,
            duration: 2000
          });
        }
      },
      fail: function () {
        // fail
        wx.showToast({
          title: '网络异常！',
          duration: 2000
        });
      }
    });
  },
  //添加到收藏
  addFavorites: function (e) {
    var that = this;
    wx.request({
      url: app.d.ceshiUrl + '/Api/Product/col',
      method: 'post',
      data: {
        uid: app.d.userId,
        pid: that.data.productId,
      },
      header: {
        'Content-Type': 'application/x-www-form-urlencoded'
      },
      success: function (res) {
        // //--init data        
        var data = res.data;
        if (data.status == 1) {
          wx.showToast({
            title: '操作成功！',
            duration: 2000
          });
          //变成已收藏，但是目前小程序可能不能改变图片，只能改样式
          that.data.itemData.isCollect = true;
        } else {
          wx.showToast({
            title: data.err,
            duration: 2000
          });
        }
      },
      fail: function () {
        // fail
        wx.showToast({
          title: '网络异常！',
          duration: 2000
        });
      }
    });
  },
  // 商品详情数据获取
  loadProductDetail: function () {
    var that = this;
    wx.request({
      url: app.d.ceshiUrl + '/Api/Product/index',
      method: 'post',
      data: {
        pro_id: that.data.productId,
      },
      header: {
        'Content-Type': 'application/x-www-form-urlencoded'
      },
      success: function (res) {
        //--init data 
        var status = res.data.status;
        console.log(res);
        if (status == 1) {
          var pro = res.data.pro;
          var content = pro.content;
          //that.initProductData(data);
          WxParse.wxParse('content', 'html', content, that, 3);
          var buff = res.data.commodityAttr;
          that.setData({
            itemData: pro,
            imgUrls: pro.img_arr,
            commodityAttr: buff,
          });
          that.setData({
            includeGroup: buff
          });
          that.distachAttrValue(buff);
          // 只有一个属性组合的时候默认选中
          // console.log(this.data.attrValueList);
          console.log(buff)
          if (buff.length == 1) {
            for (var i = 0; i < buff[0].attrValueList.length; i++) {
              that.data.attrValueList[i].selectedValue = buff[0].attrValueList[i].attrValue;
            }
            that.setData({
              attrValueList: that.data.attrValueList
            });
          }
        } else {
          wx.showToast({
            title: res.data.err,
            duration: 2000,
          });
        }
      },
      error: function (e) {
        wx.showToast({
          title: '网络异常！',
          duration: 2000,
        });
      },
    });
  },
  // 属性选择
  onShow: function () {
    this.loadProductDetail();
  },
  /* 获取数据 */
  distachAttrValue: function (commodityAttr) {
    /**
      将后台返回的数据组合成类似
      {
        attrKey:'型号',
        attrValueList:['1','2','3']
      }
    */
    // 把数据对象的数据（视图使用），写到局部内
    var attrValueList = this.data.attrValueList;
    // 遍历获取的数据
    for (var i = 0; i < commodityAttr.length; i++) {
      for (var j = 0; j < commodityAttr[i].attrValueList.length; j++) {
        var attrIndex = this.getAttrIndex(commodityAttr[i].attrValueList[j].attrKey, attrValueList);
        // console.log('属性索引', attrIndex); 
        // 如果还没有属性索引为-1，此时新增属性并设置属性值数组的第一个值；索引大于等于0，表示已存在的属性名的位置
        if (attrIndex >= 0) {
          // 如果属性值数组中没有该值，push新值；否则不处理
          if (!this.isValueExist(commodityAttr[i].attrValueList[j].attrValue, attrValueList[attrIndex].attrValues)) {
            attrValueList[attrIndex].attrValues.push(commodityAttr[i].attrValueList[j].attrValue);
          }
        } else {
          attrValueList.push({
            attrKey: commodityAttr[i].attrValueList[j].attrKey,
            attrValues: [commodityAttr[i].attrValueList[j].attrValue]
          });
        }
      }
    }
    // console.log('result', attrValueList)
    for (var i = 0; i < attrValueList.length; i++) {
      for (var j = 0; j < attrValueList[i].attrValues.length; j++) {
        if (attrValueList[i].attrValueStatus) {
          attrValueList[i].attrValueStatus[j] = true;
        } else {
          attrValueList[i].attrValueStatus = [];
          attrValueList[i].attrValueStatus[j] = true;
        }
      }
    }
    this.setData({
      attrValueList: attrValueList
    });
  },
  getAttrIndex: function (attrName, attrValueList) {
    // 判断数组中的attrKey是否有该属性值
    for (var i = 0; i < attrValueList.length; i++) {
      if (attrName == attrValueList[i].attrKey) {
        break;
      }
    }
    return i < attrValueList.length ? i : -1;
  },
  isValueExist: function (value, valueArr) {
    // 判断是否已有属性值
    for (var i = 0; i < valueArr.length; i++) {
      if (valueArr[i] == value) {
        break;
      }
    }
    return i < valueArr.length;
  },
  /* 选择属性值事件 */
  selectAttrValue: function (e) {
    /*
    点选属性值，联动判断其他属性值是否可选
    {
      attrKey:'型号',
      attrValueList:['1','2','3'],
      selectedValue:'1',
      attrValueStatus:[true,true,true]
    }
    console.log(e.currentTarget.dataset);
    */
    var attrValueList = this.data.attrValueList;
    var index = e.currentTarget.dataset.index;//属性索引
    var key = e.currentTarget.dataset.key;
    var value = e.currentTarget.dataset.value;
    if (e.currentTarget.dataset.status || index == this.data.firstIndex) {
      if (e.currentTarget.dataset.selectedvalue == e.currentTarget.dataset.value) {
        // 取消选中
        this.disSelectValue(attrValueList, index, key, value);
      } else {
        // 选中
        this.selectValue(attrValueList, index, key, value);
      }

    }
  },
  /* 选中 */
  selectValue: function (attrValueList, index, key, value, unselectStatus) {
    // console.log('firstIndex', this.data.firstIndex);
    var includeGroup = [];
    if (index == this.data.firstIndex && !unselectStatus) { // 如果是第一个选中的属性值，则该属性所有值可选
      var commodityAttr = this.data.commodityAttr;
      // 其他选中的属性值全都置空
      // console.log('其他选中的属性值全都置空', index, this.data.firstIndex, !unselectStatus);
      for (var i = 0; i < attrValueList.length; i++) {
        for (var j = 0; j < attrValueList[i].attrValues.length; j++) {
          attrValueList[i].selectedValue = '';
        }
      }
    } else {
      var commodityAttr = this.data.includeGroup;
    }

    // console.log('选中', commodityAttr, index, key, value);
    for (var i = 0; i < commodityAttr.length; i++) {
      for (var j = 0; j < commodityAttr[i].attrValueList.length; j++) {
        if (commodityAttr[i].attrValueList[j].attrKey == key && commodityAttr[i].attrValueList[j].attrValue == value) {
          includeGroup.push(commodityAttr[i]);
        }
      }
    }
    attrValueList[index].selectedValue = value;

    // 判断属性是否可选
    // for (var i = 0; i < attrValueList.length; i++) {
    //   for (var j = 0; j < attrValueList[i].attrValues.length; j++) {
    //     attrValueList[i].attrValueStatus[j] = false;
    //   }
    // }
    // for (var k = 0; k < attrValueList.length; k++) {
    //   for (var i = 0; i < includeGroup.length; i++) {
    //     for (var j = 0; j < includeGroup[i].attrValueList.length; j++) {
    //       if (attrValueList[k].attrKey == includeGroup[i].attrValueList[j].attrKey) {
    //         for (var m = 0; m < attrValueList[k].attrValues.length; m++) {
    //           if (attrValueList[k].attrValues[m] == includeGroup[i].attrValueList[j].attrValue) {
    //             attrValueList[k].attrValueStatus[m] = true;
    //           }
    //         }
    //       }
    //     }
    //   }
    // }
    // console.log('结果', attrValueList);
    this.setData({
      attrValueList: attrValueList,
      includeGroup: includeGroup
    });

    var count = 0;
    for (var i = 0; i < attrValueList.length; i++) {
      for (var j = 0; j < attrValueList[i].attrValues.length; j++) {
        if (attrValueList[i].selectedValue) {
          count++;
          break;
        }
      }
    }
    if (count < 2) {// 第一次选中，同属性的值都可选
      this.setData({
        firstIndex: index
      });
    } else {
      this.setData({
        firstIndex: -1
      });
    }
  },
  /* 取消选中 */
  disSelectValue: function (attrValueList, index, key, value) {
    var commodityAttr = this.data.commodityAttr;
    attrValueList[index].selectedValue = '';

    // 判断属性是否可选
    for (var i = 0; i < attrValueList.length; i++) {
      for (var j = 0; j < attrValueList[i].attrValues.length; j++) {
        attrValueList[i].attrValueStatus[j] = true;
      }
    }
    this.setData({
      includeGroup: commodityAttr,
      attrValueList: attrValueList
    });

    for (var i = 0; i < attrValueList.length; i++) {
      if (attrValueList[i].selectedValue) {
        this.selectValue(attrValueList, i, attrValueList[i].attrKey, attrValueList[i].selectedValue, true);
      }
    }
  },

  initProductData: function (data) {
    data["LunBoProductImageUrl"] = [];

    var imgs = data.LunBoProductImage.split(';');
    for (let url of imgs) {
      url && data["LunBoProductImageUrl"].push(app.d.hostImg + url);
    }

    data.Price = data.Price / 100;
    data.VedioImagePath = app.d.hostVideo + '/' + data.VedioImagePath;
    data.videoPath = app.d.hostVideo + '/' + data.videoPath;
  }
})


  